Dissection of the shoulder and axilla, deep dissection, in 2 numbered illustrations. 1 illustration of axial dissection, thoracic and shoulder muscles divided and reflected to show axillary and brachial artery, brachial plexus. Anterior view. 1 illustration of shoulder dissection, shoulder and back muscles divided and removed to show brachial plexus, subclavian and suprascapular arteries. Posterior view.